Primary aluminum with a low-carbon footprint 3.5 times better than the industry average

EcoLumSustana

Sustanaan Alcoa product Sustana

™

• Mine-to-casthouse advantage: Direct and indirect

emissions measured across

bauxite mining, alumina

refining and aluminum

smelting and casting*

• Responsible and sustainable mining: An alumina refining

system that is the lowest

per ton emitter of C02 among

global producers**

• Renewable energy: Smelters

powered with hydro-electric

generation

• Third-party validation: Material available with

certification from Aluminium

Stewardship Initiative

• Environmental Product Declaration: Verified

according to ISO 14025,

and life cycle analysis

per ISO 14044

• Corporate greenhouse gas (GHG) inventory: Calculations

third-party verified and

consistent with ISO 14064

Improve your carbon footprint with premium aluminum, superior to most of the world’s production

Alcoa's strong position as a sustainability leader across the entire aluminum

value chain allows it to offer EcoLumTM from our Sustana line. EcoLumTM primary

aluminum is produced with less than 4.0 metric tons of CO2e for every ton of

metal produced, including both direct and indirect (Scope 1 and Scope 2*)

emissions across the entire production chain, including bauxite mining and

alumina refining. This performance is approximately three and a half times

better than the industry average.** Delivered globally from predominantly hydro-

powered smelters in North America and Europe, all casthouse shapes are

available. As the aluminum industry’s pioneer, we are advancing sustainably and

helping our customers realize new possibilities.

Average global CO2e emissions per ton aluminum*

**Source: Average data per CRU Aluminium Cost Model 2020 and CRU Bauxite and Alumina Cost Model 2020

Region of production (smelting)

0 2 4 6 8 10 12 14 16

World average

*Scope 1 and 2 included for bauxite, alumina and aluminum emissions, calculated in accordance with the IAI Aluminium Sector GHG Protocol, addendum to the

WRI/WBCSD GHG protocol, the WRI/WBCSD Calculation Tool for Direct Emissions from Stationary Combustion, and the WRI GHG Protocol Scope 2 Protocol.

The SustanaTM family

offers industry-leading

environmental

performance with a

mine-to-casthouse

advantage:

Smelter-GradeAlumina

Low-Carbon Primary Aluminum

Aluminum with Recycled Content

EcoDuraSustana

ASI certifications available

Less than 0.6 CO2e emissions (Scope 1 and 2) from bauxite and alumina

ASI certifications available

Less than 4.0 CO2e emissions (Scope 1 and 2) across bauxite, alumina, smelting, casting

ASI certifications available

Minimum 50% recycled content